package coordinator

import (
	"context"
	"errors"
	"sync"

	"xagent/internal/actors"
	"xagent/internal/messages"

	"github.com/google/uuid"
)

// TeamCoordinator manages a team of agents
type TeamCoordinator struct {
	agents    map[string]*actors.AIAgent
	tasks     map[string]*Task
	mutex     sync.RWMutex
	ctx       context.Context
	cancel    context.CancelFunc
	eventChan chan Event
}

// Task represents a team task
type Task struct {
	ID           string
	Type         string
	Content      string
	AssignedTo   string
	Dependencies []string
	Status       string
}

// Event represents a team event
type Event struct {
	Type    string
	Content interface{}
	Source  interface{}
}

// Add error definitions
var (
	ErrTaskNotFound  = errors.New("task not found")
	ErrAgentNotFound = errors.New("agent not found")
)

// NewTeamCoordinator creates a new team coordinator
func NewTeamCoordinator() *TeamCoordinator {
	ctx, cancel := context.WithCancel(context.Background())
	return &TeamCoordinator{
		agents:    make(map[string]*actors.AIAgent),
		tasks:     make(map[string]*Task),
		ctx:       ctx,
		cancel:    cancel,
		eventChan: make(chan Event, 100),
	}
}

// AddAgent adds an agent to the team
func (tc *TeamCoordinator) AddAgent(agent *actors.AIAgent) {
	tc.mutex.Lock()
	defer tc.mutex.Unlock()
	tc.agents[agent.GetName()] = agent
}

// AssignTask assigns a task to an agent
func (tc *TeamCoordinator) AssignTask(taskID string, agentName string) error {
	tc.mutex.Lock()
	defer tc.mutex.Unlock()

	task, ok := tc.tasks[taskID]
	if !ok {
		return ErrTaskNotFound
	}

	agent, ok := tc.agents[agentName]
	if !ok {
		return ErrAgentNotFound
	}

	task.AssignedTo = agentName
	response := &messages.BasicMessage{
		MessageID:  uuid.New().String(),
		MsgType:    messages.TypeResponse,
		MsgContent: "Team coordination message",
		MsgMetadata: map[string]interface{}{
			"role": "coordinator",
		},
	}
	agent.GetContext().Send(agent.GetContext().Self(), response)

	return nil
}

// Start starts the team coordinator
func (tc *TeamCoordinator) Start() {
	go tc.processEvents()
}

// Stop stops the team coordinator
func (tc *TeamCoordinator) Stop() {
	tc.cancel()
}

// processEvents processes team events
func (tc *TeamCoordinator) processEvents() {
	for {
		select {
		case <-tc.ctx.Done():
			return
		case event := <-tc.eventChan:
			tc.handleEvent(event)
		}
	}
}

// handleEvent handles a team event
func (tc *TeamCoordinator) handleEvent(event Event) {
	tc.mutex.Lock()
	defer tc.mutex.Unlock()

	switch event.Type {
	case "task_completed":
		if task, ok := event.Content.(*Task); ok {
			tc.handleTaskCompletion(task)
		}
	case "task_failed":
		if task, ok := event.Content.(*Task); ok {
			if err, ok := event.Source.(error); ok {
				tc.handleTaskFailure(task, err)
			}
		}
	case "resource_conflict":
		if task, ok := event.Content.(*Task); ok {
			tc.handleResourceConflict(task)
		}
	}
}

// Add missing methods
func (tc *TeamCoordinator) handleTaskCompletion(task *Task) {
	// Implementation
}

func (tc *TeamCoordinator) handleTaskFailure(task *Task, err error) {
	// Implementation
}

func (tc *TeamCoordinator) handleResourceConflict(task *Task) {
	// Implementation
}
